Extract PAT operation with service

[JohnNiang]

What type of PR is this?

/kind improvement
/area core
/milestone 2.20.x

What this PR does / why we need it:

This PR refactors UserScopedPatHandlerImpl with PAT service to make PAT operations flexible.

Does this PR introduce a user-facing change?

None

[Copilot]

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (1)

application/src/main/java/run/halo/app/core/user/service/impl/PatServiceImpl.java:246

• [nitpick] Consider extracting the hardcoded 'pat_' prefix into a constant to ensure consistency with other components and to ease future modifications.

return Mono.just(jwt).map(jwt -> "pat_" + jwt.getTokenValue());

[codecov]

Codecov Report

Attention: Patch coverage is 51.79856% with 67 lines in your changes missing coverage. Please review.

Project coverage is 57.47%. Comparing base (60c2009) to head (2e4f04a).
Report is 11 commits behind head on main.

Files with missing lines	Patch %	Lines
...alo/app/core/user/service/impl/PatServiceImpl.java	50.86%	49 Missing and 8 partials ⚠️
...y/authentication/pat/UserScopedPatHandlerImpl.java	56.52%	9 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #7341      +/-   ##
============================================
+ Coverage     57.18%   57.47%   +0.28%     
- Complexity     4066     4107      +41     
============================================
  Files           721      723       +2     
  Lines         24546    24670     +124     
  Branches       1612     1634      +22     
============================================
+ Hits          14036    14178     +142     
+ Misses         9882     9842      -40     
- Partials        628      650      +22     

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[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[ruibaby]

/lgtm

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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